<!DOCTYPE html>
<html lang="en">

  <head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>理解MVVM模型</title>
  </head>

  <body>
    <div id="app">
      <h3>{{msg.str}}</h3>
    </div>
  </body>
  <script src="../js/vue.js"></script>
  <script>
    const vm = new Vue({
      el: "#app",
      data: {
        msg: {
          str: "你好Vue"
        }
      }
    })
  </script>

</html>